 A trio of propane hot water heaters. A water heater or hot water heater is an appliance for heating water above its ambient temperature. In industrial usage, large water heaters are called boilers. Download high resolution version (1280x853, 188 KB) Wikipedia does not have an article with this exact name. ...
Download high resolution version (1280x853, 188 KB) Wikipedia does not have an article with this exact name. ...
Jump to: navigation, search Water (from the Old English word wæter; c. ...
Tank heaters In household and commercial usage, most water heaters are of the tank type. These consist of tanks in which a given amount of water is kept continuously hot and ready for use. Typical sizes for household use are 20 to 40 US gallons (75 to 150 L). These may run on electricity, natural gas, propane gas, fuel oil, or other energy sources. The most popular in the United States is the natural gas type. Jump to: navigation, search Electricity is a general term applied to phenomena involving a fundamental property of matter called an electric charge. ...
Natural gas (commonly refered to as gas in many countries, but note that this is also American and Canadian slang for gasoline) is a gaseous fossil fuel consisting primarily of methane. ...
Nodding donkey pumping an oil well near Sarnia, Ontario, 2001 Petroleum (from Latin petra – rock and oleum – oil), crude oil, sometimes colloquially called black gold, is a thick, dark brown or greenish flammable liquid, which exists in the upper strata of some areas of the Earths crust. ...
Tank-type water heaters can be made more efficient by installation of additional insulation jackets around the tank, flow valve devices at their inlet and outlet, cycle timers, electronic ignition (in the case of fuel-using models), sealed air intake systems (in the case of fuel-using models), and pipe insulation. The sealed air-intake system types are sometimes called "band-joist" intake units. "High efficiency" units can convert up to 98% of the energy in the fuel to heating the water. The exhaust gases of combustion are cool and are mechanically ventilated without the need of a chimney.
In British English, water heaters are known as boilers,or "Geysers"(pronounced Geezers), feeding a separate hot water tank. Such tanks are often fitted with a backup electrical heater for a quick boost, known as an immersion heater. It is mandatory that these hot water storage vessels are 'indirect'. That means the water from the boiler circulates via a separate internal exchanger and does not come into contact with the stored hot water. (It is common for first time American users to burn themselves if not warned). British English (BrE) is a term used to differentiate the form of the written English language in the United Kingdom from other forms of the English language. ...
Tankless heaters Tankless instantaneous or "instant-on" water heaters are also available and gaining in popularity. These water heaters heat the water as the water flows through the device, and do not retain any water internally except for what is in the pipe. Installed at the point of use, these heaters can be far more efficient than the tank type. There are models powered by electricity, natural gas or propane. These type of heaters are also know as "in-line" water heaters
Solar heaters In some locales, solar water heaters are used. These are installed outside dwellings, typically on the roof or nearby, and consist of a tank and of a panel in which water circulates. The tank and the panel are painted a dark color in order to maximize the reception of solar heat. ImageMetadata File history File links Download high resolution version (2592x1944, 2254 KB) Solar water heater used in the Cirque de Mafate, Réunion Copyright © 2005 David Monniaux Template:Cc-by-sa-2. ...
ImageMetadata File history File links Download high resolution version (2592x1944, 2254 KB) Solar water heater used in the Cirque de Mafate, Réunion Copyright © 2005 David Monniaux Template:Cc-by-sa-2. ...
Marla, seen from the Col du Taïbit Airlift over Roche-Plate Locals often have a few crops, such as lentils, and a few heads of cattle The Cirque de Mafate is a volcanic cirque on Réunion Island (France; located in the Indian Ocean). ...
See also A boiler is a closed vessel in which water or other fluid is heated under pressure. ...
Tankless water heaters are home appliances used to heat water for residential or commercial use. ...
External links - Directory of Water Heater Contractors
- Howstuffworks "How Water Heaters Work"
- Water Heater Articles Collection of articles about industrial water heaters
- Water Heating for Dairies Issues relating to farm dairy water heating
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